D12320VF25IV Datasheet, PDF (418/1304 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 9 I/O Ports
9.6.3 Pin Functions
Port 5 pins also function as SCI I/O pins (TxD₂, RxD₂, and SCK₂), the A/D converter input pin
(ADTRG), interrupt input pins (IRQ₄ to IRQ₇), and bus control signal I/O pins (WAIT and
BREQO). Port 5 pin functions are shown in table 9.10.
Table 9.10 Port 5 Pin Functions
Pin
P53/ADTRG/
IRQ7/WAIT/
BREQO
P52/SCK2/IRQ6
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
the operating mode, bits TRGS1 and TRGS0 in the A/D control register
(ADCR), and bits IRQPAS, WAITE, WAITPS, BREQOE, BREQOPS, and
P53DDR.
Operating mode
Modes 4 to 6
Mode 7
[BREQOE ·
0
BREQOPS]
1
—
[WAITE ·
0
1
0
1
—
WAITPS]
P53DDR
0
1
0
1
—
—
0
1
Pin function
P53
input
pin
P53
output
pin
WAIT Setting BREQO Setting
input pro- output pro-
pin hibited pin hibited
P53
input
pin
P53
output
pin
ADTRG input pin^*1
IRQ7 interrupt input pin^*2
Notes: 1. ADTRG input when TRGS0 = TRGS1 = 1.
2. IRQ7 input when IRQPAS = 1.
The pin function is switched as shown below according to the combination of
bit C/A in the SCI2 SMR, bits CKE0 and CKE1 in SCR, and bits IRQPAS and
P52DDR.
CKE1
C/A
0
0
1
1
—
CKE0
0
1
—
—
P52DDR
0
1
—
—
—
Pin function
P52
P52
SCK2
SCK2
input pin output pin output pin output pin
IRQ6 interrupt input pin^*
Note: * IRQ6 input when IRQPAS = 1.
SCK2
input pin
Rev.6.00 Sep. 27, 2007 Page 386 of 1268
REJ09B0220-0600